352 CHAPTER 33: SNMP CONFIGURATION
information, while those with read-write permission can configure the switch
as well.
■ Set the basic ACL specified by the community name.
Supported MIBs An SNMP packet carries management variables with it. Management variable is
used to describe the management objects of a switch. To uniquely identify the
management objects of the switch, SNMP adopts a hierarchical naming scheme to
organize the managed objects. It is like a tree, with each tree node representing a
managed object, as shown in
Figure 106. Each node in this tree can be uniquely
identified by a path starting from the root.
Figure 106 Architecture of the MIB tree
The management information base (MIB) describes the hierarchical architecture of
the tree and it is the set defined by the standard variables of the monitored
network devices. In the above figure, the managed object B can be uniquely
identified by a string of numbers {1.2.1.1}. The number string is the object
identifier (OID) of the managed object.
The common MIBs supported by switches are listed in Table 272.
Tabl e 272 Common MIBs
MIB attribute MIB content Related RFC
Public MIB MIB II based on TCP/IP
network device
RFC 1213
BRIDGE MIB RFC 1493
RFC 2675
RIP MIB RFC 1724
RMON MIB RFC 2819
Ethernet MIB RFC 2665
OSPF MIB RFC 1253
IF MIB RFC 1573
A
2
6
1
5
2
1
1
2
1
B
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